/* FCE Ultra - NES/Famicom Emulator
 *
 * Copyright notice for this file:
 *  Copyright (C) 2002 Xodnizel
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */

#include "mapinc.h"


#define IREMCon mapbyte1[0]

static DECLFW(Mapper32_write) {
	switch (A >> 12) {
	case 0x8:
		mapbyte1[1] = V;
		if (IREMCon) {
			ROM_BANK8(0xc000, V); ROM_BANK8(0x8000, ~1);
		}else                                                        { ROM_BANK8(0x8000, V); ROM_BANK8(0xc000, ~1); }
		break;
	case 0x9: IREMCon = (V >> 1) & 1;
		if (IREMCon) {
			ROM_BANK8(0xc000, mapbyte1[1]); ROM_BANK8(0x8000, ~1);
		}else                                                                  { ROM_BANK8(0x8000, mapbyte1[1]); ROM_BANK8(0xc000, ~1); }
		MIRROR_SET(V & 1);
		break;
	case 0xa: ROM_BANK8(0xA000, V);
		break;
	}

	if ((A & 0xF000) == 0xb000)
		VROM_BANK1((A & 0x7) << 10, V);
}

void Mapper32_init(void) {
	ROM_BANK16(0x8000, 0);
	ROM_BANK16(0xc000, ~0);
	SetWriteHandler(0x8000, 0xffff, Mapper32_write);
}
